1、概要当新增、更新或改造设备等进行投资时,在决定计划之前,应进行充分的技术论证。同时,对其投资效果作出判断也是极为重要的。判断投资效果的经济性,其计算方法有若干种,但应该是尽可能的简便。在这里不可能在经济性上作出详细的计算。下面就担负设备改造计划的人员能够利用且又简易的计算方法,举例说明。 1. Summary When investing in new, updated, or retrofitted equipment, a full technical demonstration should be conducted before deciding on a plan. At the same time, it is extremely important to make judgments about the effect of their investment. There are several ways to determine the economics of investment effects, but they should be as simple as possible. It is not possible here to make detailed calculations on economics. The following is an example of how the personnel responsible for the equipment modification plan can use the simple calculation method.